./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:41:40,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:41:40,467 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 03:41:40,474 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:41:40,475 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:41:40,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:41:40,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:41:40,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:41:40,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:41:40,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:41:40,504 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:41:40,504 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:41:40,504 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:41:40,504 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:41:40,504 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:41:40,504 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:41:40,505 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:41:40,505 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:41:40,505 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:41:40,505 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:41:40,505 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:41:40,505 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:41:40,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:41:40,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:41:40,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:41:40,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:41:40,506 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:41:40,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:41:40,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:41:40,507 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:41:40,507 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:41:40,507 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:41:40,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:41:40,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:41:40,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:41:40,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:41:40,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:41:40,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:41:40,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:41:40,508 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:41:40,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:41:40,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:41:40,509 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:41:40,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:41:40,509 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2024-11-14 03:41:40,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:41:40,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:41:40,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:41:40,875 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:41:40,875 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:41:40,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i Unable to find full path for "g++" [2024-11-14 03:41:42,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:41:43,420 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:41:43,421 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2024-11-14 03:41:43,481 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/data/d450abd6a/e8bfa344de314716b4743c41f6804b96/FLAGa5ed00cfb [2024-11-14 03:41:43,777 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/data/d450abd6a/e8bfa344de314716b4743c41f6804b96 [2024-11-14 03:41:43,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:41:43,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:41:43,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:41:43,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:41:43,788 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:41:43,789 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:41:43" (1/1) ... [2024-11-14 03:41:43,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67cc21c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:43, skipping insertion in model container [2024-11-14 03:41:43,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:41:43" (1/1) ... [2024-11-14 03:41:43,908 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:41:44,241 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2024-11-14 03:41:44,251 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2024-11-14 03:41:45,297 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:45,298 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:45,298 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:45,299 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:45,300 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:45,328 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:45,329 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:45,331 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:45,332 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,179 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,180 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:41:46,394 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:41:46,411 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4495,4508] [2024-11-14 03:41:46,414 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i[4555,4568] [2024-11-14 03:41:46,469 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,470 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,471 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,473 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,473 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,484 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,485 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,486 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,490 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-14 03:41:46,652 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,652 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:41:46,670 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-14 03:41:46,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:41:46,965 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:41:46,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46 WrapperNode [2024-11-14 03:41:46,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:41:46,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:41:46,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:41:46,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:41:46,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46" (1/1) ... [2024-11-14 03:41:47,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46" (1/1) ... [2024-11-14 03:41:47,144 INFO L138 Inliner]: procedures = 680, calls = 2633, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2024-11-14 03:41:47,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:41:47,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:41:47,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:41:47,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:41:47,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46" (1/1) ... [2024-11-14 03:41:47,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46" (1/1) ... [2024-11-14 03:41:47,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46" (1/1) ... [2024-11-14 03:41:47,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46" (1/1) ... [2024-11-14 03:41:47,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46" (1/1) ... [2024-11-14 03:41:47,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46" (1/1) ... [2024-11-14 03:41:47,203 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46" (1/1) ... [2024-11-14 03:41:47,207 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46" (1/1) ... [2024-11-14 03:41:47,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:41:47,216 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:41:47,216 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:41:47,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:41:47,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46" (1/1) ... [2024-11-14 03:41:47,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:41:47,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:41:47,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:41:47,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:41:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2024-11-14 03:41:47,297 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2024-11-14 03:41:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-14 03:41:47,299 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-14 03:41:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:41:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-14 03:41:47,300 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-14 03:41:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 03:41:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:41:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:41:47,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:41:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:41:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:41:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-14 03:41:47,302 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-14 03:41:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:41:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:41:47,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:41:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-14 03:41:47,302 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-14 03:41:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-14 03:41:47,302 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-14 03:41:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 03:41:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:41:47,303 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:41:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:41:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:41:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 03:41:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-14 03:41:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-14 03:41:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-14 03:41:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-14 03:41:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:41:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:41:47,681 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:41:47,684 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:41:54,653 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-11-14 03:41:54,654 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:41:55,501 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:41:55,501 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:41:55,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:41:55 BoogieIcfgContainer [2024-11-14 03:41:55,501 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:41:55,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:41:55,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:41:55,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:41:55,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:41:43" (1/3) ... [2024-11-14 03:41:55,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36164a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:41:55, skipping insertion in model container [2024-11-14 03:41:55,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:46" (2/3) ... [2024-11-14 03:41:55,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36164a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:41:55, skipping insertion in model container [2024-11-14 03:41:55,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:41:55" (3/3) ... [2024-11-14 03:41:55,511 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2024-11-14 03:41:55,526 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:41:55,528 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_c_str_harness.i that has 11 procedures, 108 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:41:55,591 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:41:55,606 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a7e04d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:41:55,606 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:41:55,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 62 states have internal predecessors, (74), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 03:41:55,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:41:55,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:41:55,619 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:41:55,620 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:41:55,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:41:55,625 INFO L85 PathProgramCache]: Analyzing trace with hash 101029084, now seen corresponding path program 1 times [2024-11-14 03:41:55,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:41:55,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142915492] [2024-11-14 03:41:55,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:41:55,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:43:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:44:51,935 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 03:44:51,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:44:51,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142915492] [2024-11-14 03:44:51,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142915492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:44:51,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109621753] [2024-11-14 03:44:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:44:51,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:44:51,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:44:51,943 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:44:51,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06b6b5eb-b139-4239-b9f0-2f2482383ce8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process